What to do after jailbreaking my iPhone?

I just jailbroke my iPhone 3GS because I wanted the keyboards, and themes, not games or anything like that. Someone told me I could get themes and keyboards for free. I jailbroke it, and went into the Cydia app and honestly am so stuck. Could someone give me the steps to do this Please?

Go to sources and add sources, go to YouTube and search for a Cydia tweak called colorkeyboard

I have lots of experience with jailbroken stuff.
Go to Cydia click selections>all packages>find themes…
My Cydia might be different from yours cause its a ipodtouch.

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